It also is possible to run the custom code as a user exit script from CustomSettings.ini using the UserExit directive. This provides a mechanism for information to be passed into the CustomSettings.ini rule validation process and provides a dynamic update of MDT properties

For more information on user exit scripts and the UserExit directive, see the section, User Exit Scripts in the CustomSettings.ini File, in the MDT document Using the Microsoft Deployment Toolkit.

Related Topics

Integrating Custom Deployment Code